Book Information: Crown of Infinity

Earth was gone ... and with it humanity. But the last desperate defenders of the human race were still alive, regrouped in outer space, and restructured. All the ages of civilization culminated in that final act of defense and revenge -- all science, art, and the lore of warfare were distilled into the new men, who called themselves defiantly the Star Kings.

The galactic history of the Star Kings, they who come after mankind, is the essence of this panoramic novel. It is a novel of the decline of one galactic civilization and the rise of another -- one geared first to destroy, then to colonize, finally to rebuild on a scale that would know no boundaries, recognize no barriers, and establish new goals beyond the scope of any planet-bound race.

This was an Ace Double book, meaning it was two novels in one book. The reader simply flipped the book to read the other novel. The picture shows the Crown of Infinity side. The flip side contained The Prism by Emil Petaja.